Improvement in pumps



N. FEFERS, PHOTO-UTHOGRAPHER. WASHINGTON. D. C.

I J. Grin/L all specification.

ROSOOE J. GOULD, OF NEWARK, NEW JERSEY.

Lam Patent No. 99,877, dated February 15, 1870.

IMPROVEMENT IN PUMPS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern Be it known that I, Roscoe J. Goon), of Newark, in the county of Essex, and State of New Jersey, have. invented a new and useful improvcinei'it in Double-Acting Pumps for Steam-Engines, &c.; and I do hereby declare the following to be'a full, clear, and exact description of the same, reference beinghud to the accompanying drawings which are made part of this My invention consists of a novel construction of double-acting pump, having large water-passages and large valve area in small space; adapted to be easily and cheaply manufactured, readily taken apart to get at the valves and working parts, and not liable to get out of order.

The cylinder, open at both ends, is supported centrally in a chamherformed by a suitable shell, and the heads of a pump by a. partition which further divides said chamber intotwo equal compartments with which the respective ends of the cylinder communicate. Said shell forms the valve-plate and is inelosed by an outer shell or casing forming an annular chamber external to said valve-plate, the area of which chamber is preferably increased by making the sides ofthe outer shell or casing bulging, and which is divided by longitudinal partitions into compartments forming the suction and discharge chambers or passages.

' The bolts holding the heads of thepump are screwed into the [ends of the valve-plate and serve to hold both, and also to form the joints at the end of both the valve-plate and shell. The pump is also thus adapted to be readily-taken apart when desired. The waives. with their seats are removableto facilitate their repair and renewal.

in the drawings- Figure 1 is a transverse sectiouon the line 2' :c, fig. 2,, of a pump illustrating my invention.

Figure 2 is a longitudinal section of the same on the line 3/ 3 fig. 1.

Figure 3 is a partial longitudinal section on the line 2,. fig. 1. I i

A represents the piston, which may be of any suitable form.

B represents the open cylinder in which the piston A works. 4

O, the inner shell or valve-plate surrounding said cylinder; and

O, the partition employed to support said cylinder and divide the chamber formed by said valve-plate.

D represents the outer shell or casing surrounding the valve-plate O, and forming the suction and discharge-chambers or passages, and which is preferably made bulging, as shown, to increase its capacity.

E E represent the heads, the former of which is provided with a suitable stuifing-box, e, for the rod of the piston A.

c c are maginal flanges formed on the heads E E for the support of the casing D.

F F represent the bolts employed to connect the parts of the pump, and which passing through the heads E E are screwed into the ends of the valveplate C.

c c are bosses provided on the valve-plate G for the reception of the bolts F.

G G represent the packing employed between the ends of the valve-plateG and casing D, and the heads E E, and which may be of the usual or any suitable description. 1

H H represent the valves; and

H H their open removable seats. be of any suitable form and material.

The latter are secured in the valve-plate O by being screwed into corresponding apertures therein, flanges h thereon or equivalent means serving to limit their insertion. g

The former maybe secured to their seats and guided by stems 71, having a pin passing through them at their outer ends, as shown, or in=other suitable manner.

The valve-plate G is preferably made with flat sides or faces for the reception of the valves, as shown, the number of said faces varying according to the size and character of valve and the capacity of the pump. The suction and discharge-valvesmay be similar both in area and form, as shown, or otherwise if preferred, and are arranged respectively on the inner and outer sides of the valve-plate C. 1

I I represent the longitudinal partitions employed to divide the annular space between the valve-plate G and easing D into the suction and discharge-chambers or passages.

Said partitions are preferably formed by flanges c d, on the valve-plate and casing respectively, provided with intermeshing projections and grooves and made tapering, as represented in fig. 3, (the small diameter being at the end at which the piston-rod enters,)' to facilitate the insertion and packing of the valve-plate.

J J represent packing employed in the joints of the partitions I, as shown.

K K are stays employed between the partitions, l I to assist in supporting the valve-plate O and casing D, and preferably formed on the valve-plate, as shown;

L L represent the valve-chambers; and

M, the suction; and

N, the discharge-chambers or passages.

O 0 represent the connection for the suction-pipes and P 1, those for the discharge-pipes, both of which may be formed on the casing D, as shown.

The relative number of valves included in the suction and discharge-chambers or passages and the'relative area of the pipes may be varied as desired.

The piston being as represented in fig. 2, on its They both may downward stroke the discharge-valves in the chamber L are opened, and the Water displaced by the piston is forced out through said valves and the chamber or passage N and pipe P, the water being meanwhile drawn into chamber L through the suction-valves in said chamber, the chamber or passage M and pipes 0.

On the reversal of the stroke of the piston, t-he action two heads E E the others.

A double pump may be readily made by connecting two pumps together by a waist at one of the partitions, Land extending said partition through to meet that of the other pump.

lhe piston may be operated in any suitable manper. 'lhe pipes or connections 0 may form trunnions for the support of the pump, or it may be supported in other suitable manner.

I claim as my invention-- ing an open-ended cylinder, B, of the concentric 'cir cumferential spaces L L and M N, separated by the valve-plate O, and divided respectively by partitions O and I 1 into the valve-chambers and the supply and discharge-chambers, as set forth.

3. In combination, the piston A, cylinder B, valveplate 0. a, casing D O P, partitions O I c d, I c d,

stays K K, removable valve-seats H h H h, valves H h H h, heads E e c E e, packing G J, and bolts 13 F, as constructed and arranged in the manner shown and described, to form an improved double-acting 1 ROSOOE J. GOULD.

Witnesses:

O. HOKEY GARFIELD, ULRICH EBERHARDT. 

